Propelling mechanism for boats



April 3, 192s. 1,665,053

C.CARHO PROPELLING MECHANISM FOR BOATS Filed Aug. l. 1927 l l H i T fafidmqh-mtmmm N TOR INV @M296 0 BY MW ATTORN PATENT OFFICE.

C ARLOS CARPIQ, OF NEW YORK, N. Y.

vPR01?.ELLING MECHANISM- FOR BOATS.

Application led Augustl, 192i SeriaI No. 209,750.

This invention relates to power boats and Yas for its object the provision of mechanism forpropelling a boat by sucking in water fronoi'ieY end and discharging the same from the other en`d thereof.

Another object of my invention is the provision of an adjustable discharge nozzle for steering the boat.

Other objects will appear hereinafter the novel features and combinations being more clearly set forth in the appended claims.

`In the drawings:

Fig. 1 is a side elevational'view of a boat embodying my improved propelling. means.

Fig. 2 is an end elevational View of the boat illustrated in Fig. 1.

Fig. 3 is a. top plan view of a boat ing my improved propelling means.

ig. 4 is an end elevationalview of the boat illustrated in Fig. 3.

F'g. 5 is an end elevational view of a boat embodying a different form of my improved propelling means. t

Fig. 6 is an end elevational view of a boat embodyembodying another form of my propelling.

means.

Fig. 7 is a side elevational view of a boat embodying my improved propelling means showing parts removed to disclose the interior thereof.

Fig. 8 is a top plan view ofa modified form of my invention.

Fig. 9 is a sectional view taken on the line 9-9 of Fig.8.

Fig. 10 is an illustrational view of the modified form of my invention shown in Figs. 8 and 9.

Referring particularly to Fig. 1, the numeral 10 designates a boat formed at both extremities with pointed ends. As seen in Fig.A 2 the boat 10 is provided with a Hat bottom 11 and curved sides 13 and 14. If desired a roundbottom my be constructed on the boat without altering the construction of the improved propelling mechanism hereinafter described. Channels or recesses 15, 16, and 17 are formed in bottom portion of the boat 10 at bot-h ends thereof. These channels or recesses have open outer extremities and are provided with parallel side walls and a closed inner end.

An engine or motor 18 is mounted in the boat 10 and is operativelyconnected with a water pump 19. The pump 19 ma be of any suitable size and design and in -t e form or my invention illustrated in Figs. 1, 2 and 3,

the pump 19 is adapted -to accommodate three inlet pipes 20, 21 and 22 on each side thereof. It should be understood that both ends of the boat 10 and the propelling means therein are identical and in view of this identity, rdescription of only one end and the propelling means thereof is necessar The inlet vpipes 20, y 21 and 22 are' sposed through apertures in the end of the boat which are directly above the recesses 15,16 and 17, respectively. When the right hand end of 'the boat shown in Fig. 1 is being used as the front of the boat, the inlet pipes 20, 21 and'22 are adapted to supply water tothe pump 19 and outlet pipes 23, 24 and 25 extending from the pump 19 to the channels 15', 16 and 17 of thev left hand end of the boat are adapted to carry the water from the pump 19. pipes 23, 24,

and 25 extend through the end walls of the recesses or channels 15', `16 and 17! respectively, and are provided with nozzles 26, 27 and 28. The nozzles 26, 27 and 28 are adapted to discharge the Water supplied from the front of the boat b the inlet pipes 20, 21 and 22 and' pumped lily the pump 19. It should be understood that the pump 19 is adapted to Suck in Water through the inlet pipes and discharge the saine under pressure through the outlet pipes and the nozzles connected therewith. The suction at the front of the boat and the force created at the back of the boat combine and cause the same to be urged vforwardly to the right as viewed in Fig. 1.

yValves 29, 30 and 31 are provided in the inlet pipes 20, 21 and 22, respectively, and valves 32, 33 and 34 are provided in the outlet pipes 23, 24 and 25, respectively. rllhese valves may he manipulated for opening and closing the passages in the respective pipes. It should be understood that the boat may be propelled forwardly using the right hand end or the left hand end as the bow. When it'isdesired to employ the left hand end of the boat as the bow, the inlet valves 29, 30 and 31 and the outlet valves 32, 33 and 34 are closed and water is permitted to be drawn to the pump 19 through the inlet pipes 20', 21, and 22 and to be discharged through the outlet pi es 23', 24 and 25 of the right hand end cip the boat. Valves 29", 3p and 31 are provided in the inlet pipes 20"', 21', and22 and valves 32", 33 and 34 are provided in the outletpipes 23', 24 and 25, respectively. By manipullation of the The discharge ends of the outlet losl t should further be understood that rotary movements of the boat maybe effected for steering purposes by manipulation of the valves; If, for instance, the valves are set g so lthat the water' is being taken in through cylindrical be suitabl positionedffor directin dia onally opposite inlet pipes and being disc arged through diagonally opposite outlet pipes the forces tending to move the boat in the direction of its longitudinal axis will be equalized and as the dlagonally opposite discharge pipes are not on the Central axis of the boat torque will be produced resulting in a rotary movement of theboat about its center point.

In the modified form of my invention shown in Figs. 8 and`9, the inlet pipel arrangement is the same as described above but the outlet pipes are provided with adjustable nozzles 35. The discharge pipe 36 is connected to the pump 19 at its inner end and a. cylindrical casing 37 is mounted on the outer end thereof. The pipe 36 is com municative withthe casing 37 and the outer portion of the side wall of the latter is provided with an .arcuate slot 38. An outer casing 40 is concentrically mounted on the casing 37 and is rotatively secured theretoby pins or rivets 41. The nozzle is -made integral with the outer casing and is communicative with an aperture therein which is adapted to register with the arcuate slot 38 of they inner casing. The outer casing 40 .is provided with a' handle 42 by which it may be rotated for suitably discharging water through the nozzle 35 1n a desired direction.

It should be understood that all of the discharge in a boat of the class described may be provided with adjustable nozzles and that by adjustment of the nozzles 35 the boat may be steered. Whenthe nozzle 35 is disposed as illustrated in Fig. 10 the water is discharged against -the side wall of the recess 17.

and the right end of the boat is rotated in the direction of the arrow 43. The disf charge nozzle of either end of the boat may as desire it being understood tiet when the boatv Leemans `the' single discharge unit-is emplofed oniy the rear discharge pipe is used to ischar e water and thus only the one nozzle need e manipulated vfor steering purposes.

While I have described my invention to be used onboats it is to be understood that my invention may be used on anysize vessel and that suitable machinery may be installed to drive the said vessel by expelling gases through the nozzles 26, 27, 28, or 35, which may 'replace the suction ump 19.

Having thus fully shown and escribed an embodiment ofA my invention, what is desired to be secured by Letters Patent of the United States. is:

. 1.A. boat of the class described com rising a hull having spaced apart parallele annels in the bottom thereof at both ends thereof? discharge nozzles extending throu h apertures in the bottom of said boat and dlsposed in said channels, a pump mounted in said boat, discharge pipes communicative with said nozzles and with said pump,.a plurality of supply pipes extending through apertures in the ends .of said boat and communicative with said pump adapted to draw in water when said pump is operated, said discharge nozzles being adapted to discharge Water rearwardly for forcing said boat forwardly land valves lin said discharge and veo supply pipes adapted to be manipulated for causing waterV to be discharged from diagonally opposite nozzles to rotate said boat.

2. 4A boat of the class described comprising a hull having longitudinally extendin recesses in the bottom thereof having close 'inner ends and open outer ends, a pump mounted in said boat, discharge ipes connected with said/pump, adjustab e nozzles attached to said discharge pipes and rdiaposed through apertures in vthe-bottom of said boat into the closed ends of said recesses and a handle attached to said nozzle adapted to -rotatethe same for causing the water discharged therefrom to strike the side of said boat adjacent .said recesses to rotate said boat for steering the same.

In testimony-whereof I have aixed my signature.

` .CARLOS CARPIO. 

